Window-opener.



No. 705,405. Patented July 22, I902.

J. HOBSFIELD. WINDOW OPENER.

(Application filed Apr. 8, 1902.)

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UNITED STATES I PATENT @FFIGE.

JOHN HORSFIELD, OF CHICAGO, ILLINOIS.

WINDOW-OPENEIR.

SPECIFICATION forming part of Letters Patent No. 705,405, dated July 22, 1902.

Serial No.101,287. (No model) To all whom it may concern.-

Be it known that L-JOHNHORSFIELD, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Window- Openers, of which the following is a specification.

Although for convenience this device is designated as a window-opener, it is adapted to perform the additional functions of locking the window at any desired point closing the window, and in case of fire automatically releasing and closing the window. Its objects are to provide a device of this character that will be simple in construction and efficient in operation.

In the accompanying drawings, illustrating a device embodyingthis invention, Figure 1 is an elevation of a window provided with the opener. Fig. 2 is a side elevation of the same, showing in dotted lines the window opened. Fig. 3 is a detail'of the bell-crank. Figs. 4 and 5 are details showing the operation of the locking-pin. Fig. 6 is a detail of the notched opening-rod.

A represents an ordinary window-frame, in

which a sash B is pivoted at b. A gooseneckbracket or hearing C is secured to the frame a short distance below the pivot. A crossarm or swinging bracket D is supported by hearing on the bracket 0 and is readily swung thereon. For economy of manufacture the cross arm D is made of stiif wire or rod with a coil d to engage the bearing on the bracket C and arms d d terminating in loops (1 (1* at right angles thereto to form bearings for a rod E upon which they slide. The lower end of this rod is secured tothe sash ata short distance below the bracket C by a ball-and-socketbearing e, and the upper end is provided with a bell-crank having arms 6 and e for the attachment ofpull cords (2 e A compression-spring F, coiled about the rod E, bears against the lower loop (1 of the crossarm and against a pin e in the rod, and its tension may be regulated by having two or more holes 6 for the pin e In the lower loop d of the cross-arm D is a hole 61, in which is a pin or catch G, which is pressed against the rod E by a spring 9 and is adapted to engage with notches e in the rod E. These notches may be of any desired shape, but are "the notches out of engagement with the pin G. A further pull draws the end of the rod down, compresses the spring F, and opens the window. When it is opened the desired amount, a pull on the cord 6 turns the rod,

throws the notches into engagement,and locks the window open. When it is desired to close the window, the cord 6 is again pulled, which throws the notches again out of engagement, and the spring closes thewindow. If it is desired to lock 'it closed, the cord 6 is given a slight pull, which throws the notch 6 into engagement.

If the pin G is made of fusible metal, as above suggested, it is apparent that upon its being melted it will release the notch and allow the spring to close the window.

An import-ant feature ofthis' apparatus which is obvious is its adaptability to windows of any height, as it simply requires a longer pull-cord to operate it. ,It may also be made in various styles, and although not shown, pins might be placed on the rodto engage with a slot in the lower bearing of the cross-arm, and various alterations in the details of construction will readily suggest themselves as coming within the scope of this invention.

I clain1- 1. A frame a bracket on said frame, a crossarm pivoted to said bracket, a sash pivoted in said frame, a rod secured to said sash coacting with said cross-arm, a spring to be given a tension by the movement of said rodin the opening of the sash, and a catch coacting with said rod to lock the sash.

2. In combination with a frame and pivotwindow, a bracket on said frame, a cross-arm pivoted to said bracket, a rod slidably engaging lugs or bearings on said arm and secured to said window-sash by a ball-and-socket i l I 1 spring engaging with said rod and said crossarm, a fusible metal catch or pin adapted to hold said rod in adjustable positions, arms on said rod and cords secured to said arms whereby said rod may be turned to operate the catch and drawn down to open the window.

JOHN HORSFIELD.

Witnesses:

S. P. McKELvEY, Roscom A. JOHNSON. 

